Stadium: Court 4 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/06/13 07:30 | Daiki Yoshimura v Matteo Meneghetti | 6-0,6-4 |
| ITF M15 Monastir | 2021/05/09 10:00 | Guy Orly Iradukunda v Daiki Yoshimura | 2-6,2-6 |
| ITF M15 Monastir | 2021/05/02 09:00 | Zachary Svajda v Daiki Yoshimura | 6-4,6-2 |
| ITF M15 Monastir | 2021/04/26 08:00 | Daiki Yoshimura v Constantin Bittoun Kouzmine | 3-6,3-6 |
| ITF M15 Monastir | 2021/04/25 10:30 | Mikhail Yehayan v Daiki Yoshimura | 3-6,1-6 |
| ITF M15 Antalya | 2021/04/21 09:00 | Daiki Yoshimura v Emiliano Maggioli | 3-6,3-6 |
| ITF M15 Antalya | 2021/04/12 09:00 | Elijah Poritzky v Daiki Yoshimura | 6-1,6-4 |
| ITF M15 Antalya | 2021/04/11 07:00 | Daiki Yoshimura v Keisuke Saitoh | 6-2,6-3 |
| ITF M15 Antalya | 2021/06/13 07:30 | Farzin Danny Amiri v Filip Duda | 6-3,4-6,6-10 |
| ITF M25 Most | 2021/05/26 08:00 | Filip Duda v Pavel Nejedly | 4-6,2-6 |
| ITF M25 Most | 2021/05/25 09:35 | Filip Duda v Stepan Mruzek | 2-6,6-4,10-5 |
| ITF M25 Most | 2021/05/24 09:00 | Filip Duda v Jakub Nicod | 6-3,6-1 |
| ITF M25 Most | 2021/05/23 15:00 | Filip Duda v Dominique Graf | 6-4,6-4 |
| ITF M25 Jablonec Nad Nisou | 2021/05/18 07:30 | Jean Thirouin v Filip Duda | 3-6,6-4,10-7 |
| ITF M25 Jablonec Nad Nisou | 2021/05/17 08:30 | Antonin Bolardt v Filip Duda | 0-6,3-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/16 10:00 | Krystof Zapsky v Filip Duda | 6-4,3-6,9-11 |